Overview
The ZF 4656.154.027 is a precision-engineered component designed specifically for the WG 160 Series transmission. This OEM genuine part serves as a critical sealing and alignment interface within the gearbox assembly, ensuring proper oil circulation and preventing contamination between internal chambers. As an original equipment manufacturer (OEM) component, the SKU 4656.154.027 meets ZF’s exacting tolerances for durability and performance in heavy-duty industrial applications. It is typically installed in the mid-section of the transmission, working in conjunction with the 4656101078: TRANSMISSION HOUSING to maintain structural integrity under high torque loads.
Symptoms of Failure
When the ZF 4656.154.027 begins to wear out, operators may notice several distinct failure indicators. Oil seepage around the transmission bell housing is a common early sign, often appearing as dark stains on the exterior casing. Intermittent gear engagement hesitation can occur when the part loses its sealing capability, allowing pressure fluctuations in the hydraulic circuit. Unusual whining or grinding noises during gear shifts may indicate that the component has become misaligned or fatigued. Accumulated metallic debris in the transmission fluid is another critical symptom, suggesting that the part is shedding material internally.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4656.154.027 |
| Material | High-grade aluminum alloy with nitrile sealing surface |
| Weight | 1.45 kg (3.2 lbs) |
| Outer Diameter | 185 mm |
| Inner Diameter | 92 mm |
| Height | 38 mm |
| Operating Temperature Range | -40°C to +120°C |
| OEM Reference | ZF WG 160 Series |
Compatibility
This OEM genuine part is primarily designed for the ZF WG 160 transmission series. It is also compatible with the ZF WG 180 and ZF WG 200 models when used in conjunction with the appropriate 4656201102: HOUS.FRONT SECT and 4656201104: HOUSING REAR PART. For complete assembly, the 4656298061: HOUSING REAR SECTION is often required to secure the component in place. Always verify your transmission’s serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101078 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4656201102 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4656201104 | HOUSING REAR PART | Rear section housing for output shaft |
| 4656298061 | HOUSING REAR SECTION | Additional rear housing support component |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing sections |
| 0750301002 | FIXING PLATE | Secures component to transmission body |
| 0636100817 | CAP SCREW | Fastener for housing attachment |
| 4656301016 | SCREEN SHEET | Filter screen for oil intake |
| 4656301017 | SCREEN SHEET | Secondary filter screen for return line |
| 0636100803 | CAP SCREW | Fastener for screen sheet retention |
Frequently Asked Questions
Q: Can the ZF 4656.154.027 be replaced without removing the entire transmission?
A: Yes, in most cases this component is accessible by removing the rear housing section. However, you will need to drain the transmission fluid and support the gearbox properly before attempting replacement.
Q: How often should the 4656.154.027 be inspected?
A: ZF recommends visual inspection during every major transmission service interval (typically every 500 operating hours or 12 months). Replace immediately if any cracks, deformation, or oil residue is observed on the sealing surface.
Q: Is the 4656.154.027 interchangeable with aftermarket alternatives?
A: While aftermarket versions exist, only the OEM genuine part guarantees the exact material composition and dimensional tolerances required for the WG 160 series. Using non-OEM parts may void transmission warranties and lead to premature failure of adjacent components like the 4656201104: HOUSING REAR PART.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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